Dyeing and bleaching apparatus



v -A. WIOLAND. DYEING AND BLEACHING APPARATUS.

APPLICATION FILED JUNE 21, 1920.

Patented Aug. 16, 1921.

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UNITED- STATES PATENT oFF c I-IERICOURT, FRANCE.

D EING Ann BLEACHING APPARATUS.

' Application fil ed June '21,

To all whom it may concern:

Be it known that I, ALOYSE VVroLANn, of Hericourt (Haute-Sane), France, manager of dye-Works, have invented Dyeing and Bleaching Apparatus, of which the following is a full, clear, and exact description. r

5 This invention has for its object an apparatus for'dyeing and bleachingvegetable and animal fiberswoun'd in bobbins of all shapes or in beam rollers. 7

This apparatus comprisessubstantially:

(a) Arotary pump withreversing gear;

(Z2) Two vats adapted to contain the products to be dyed or bleached previously placed on removable perforated tubes suitably supported in the said vats;

(01A reservoir adapted to contain the dyeing or bleaching baths; j 7 (d) A system of piping adapted to permit the circulation of the dyeing or bleach-' ing bath from the reservoir to each of the vats, then from one vat to the other by passing through the products to be dyed or bleached, While maintaining the temperature of the baths regular and permittingthe washing of the materials treated and the oxidation of thefixed colors, in case such colors areused; the vats are, moreover, designed so as to permit of recovering the; baths and the issue of the washing water of the dyed or bleached materials. r

In the accompanying drawing is shown diagrammatically and byway of example only a dyeing and bleaching apparatus made in accordance with this invention.

Figure 1 is a plan view of the apparatus.

Figs. 2' and 3 are cross vertical sections of one of the perforated tubes provided respectively with a beam roller and with crossed bobbins.

Referring to'the drawing, it will be seen that this apparatus comprises a reservoir 1 made of a suita ble metal or of reinforced concrete according to the nature of the dye ing or bleaching baths.

This reservoir is'preferably embedded in the-ground and surrounded by a suitable heat preserving material permitting-to maintain thebaths at a high temperature, without any appreciable loss of calories.

A device for the re-heating of the said baths fby means'of a circulation of steam may, moreover, be used if-considered necessary;*

Specification of Letters ratent.

Patented Aug. 1c, 1921. 1920. Serial No. 390,616. 2

Above this reservoir are arranged two vats 2 and 3also made of metal or of reinforced I concrete, according to the compositionof the baths.

These vats are preferably divided in two compartments by a median wall 4 serving also for strengthening the said vats.

Each ofthe vats 2 and 3 receives tively one or more removable perforated tubes such as'5 and '6 onwhich are placed, previously to their positioning in their respective vat, the products to be dyed or bleached which, as shown in Fig. 2, 'may be respectreated under the form of beamrollers or of crossed bobbins (asshown in Fig. 3) or under any other form. I

The tubes 5 and 6 thussupplied with the material to be treated are fitted atone of their ends on unions their other end, byunions 9. 1

The unions 7 and 9 of the vat 2 communicate respectively with branches 10 and 11 connected by branch pipes 12 and 13 to a rotary pump 14: the direction of rotation ofwhich canbe reversed.

The unions 7"and 9 of the'vat'3 communicate respectively with'branches 15 and 16 also connected by branch pipes 17 and -18 to the pump 14.

Each of thebranches 11 and 16 can be put incommunication by means of a cook 19 and 20 and of a branch 2l or 22 with the reservoir '1 for feeding either of the vats 2 .and 3 containing the. material to be dyed or bleached.

Each of these branches are also provided with a second cock'24 or 25 supplying the necessary steam for maintaining the temper. ature of the baths regular in. the'vats 2 and 3.

The branches 10 and 15 nuts} 8 screwing on are also respecwhich is mounted a cock 27, 28 and adapted to lead water'under pressure into the vats 2 and 3 for washing the dyed materials. These branches 10 and 15 can also be respectively connected by a cook 30 or 31 with a compressed air vessel for producing, as will be seen hereafter, the oxidation of fixed colors, such as indigo for instance.

' Finally'each of the vats 2 and 3' are provided at the bottom with a valve 32 permitting the return ofthe excess of the dyeing or bleaching bath in the reservoir 1; an-

? and are secured, at.

passes through the branches 16 and18 other valve 33 insures the issue of the washing water from the apparatus.

This apparatus operates in the following manner:

The dyeing bath the perforated tubes 5 and 6, on which are placed the materials to be treatec, are

brought in any convenient manner in the duit 13 and enters, through the branch 11,

into the perforated tubes 5 of the vat 2, passing through thefibers to be treated supported by these tubes.

As soon as the vat 2 is full, the cock 20 is turned off, the cook 19 is opened and the direction of rotation of the pump is reversed, this pump then sucking the bath through the pipe 21 and the conduits 11 and 13, for de-' livering itthrough the conduits 18 and 16 to the 'aerforatedtubes 6'of' the vat 3.

lVhen the dyeing or bleaching bath has reached a certain height in the vat 3,.the cock 19 is turned off and pumpis controlled in such a manner as to alternately suck and deliver the bath from one vat to the otherthrough the. perforated tubes 5 and6 supporting the fibers to be treated. V

. The-pump is thus left to work during a period of time determined by the nature of the fibers and of the bath.

This intense circulation of the bath, well in proportion with the quantity of mater'al to be treated, permits of obtaining a perfect penetration of'the fibers under the form of rollers and bobbins.

During the dyeing operation, the cocks 24 or 25 supply the steam necessary for maintaining the temperature of the bath regular.

At the end of the operation, the duration of which varies according to the shades to be obtained, the valves 32 of each of the vats 2 and 3 are opened so as to permit of emptying these vats in the reservoir 1 and consequently ofrecover-ing the bath in excess.

This bath is strengthened and used for the following operations.

In order to permit of recovering the bath contained in the material treated, at the end ofeach dyeing operation, the steam cocks 24 and 25 are opened. 7

Finally, when fixed colors are used, such as indigo for instance, the cocks and 31 are opened at the end-of the recovering operation, these cocks communicating, as pre being suitably prepared, 7 have been emptied and the working of thewith a compresed air vesthe oxidation of the said viously mentioned, sel so as to produce colors.

' When the vats 2 and 3 and the products freed from the dye in excess, the valves 32 are closed and the cocks 2S and 29 are opened, in order to lead the water under pressure through the perforated tubes 5 and 6 for washing the dyed or bleached products.

This washing water is led away from the vats 2 and 3 by opening the valves 33.

From the foregoing it will be understood that this apparatus'which is of a very simple construction, does not comprise any delicate member and that it may thus be constructed at a relatively low cost.

It allows of obtaining with a high output and a minimum of labor shades which are fixed and irreproachable as regards the regularity of tints and the penetration of the fibers which can be treated under the form of rollers or of bobbins of any shape whatever. I

Finally it allows of dyeing the fixed shades in vats, such as indigo for instance.

The above described apparatus is given by way of example only and it is obvious that the forms, materials and dimensions of the various constitutive. parts may be varied without departing thereby from the nature of the invention.

Claims s i 1. An apparatus for dyeing and bleaching vegetable and animal fibers on bobbins or beam rollers, comprising: a reservoir for the dyeing or bleaching bath,two vats arranged above the said reservoir,perforated tubes mounted in the said vats and receiving the materials to be dyed or bleached, a system of piping connecting the vats together and with the said reservoir,a rotary pump with a reversing gear interposed in the system of piping, between the two vats containing the products and permitting to obtain the circulation of the dyeing or bleaching bath from the reservoir to either of the said vats, or from one vat to the other, means for washing of the textile materials, means for xidation of the fixed colors and means for drawing off the baths.

2. An apparatus for dyeing and bleach ing vegetable and or beam rollers, com arising: a reservoir for the dyeing or bleaching bath,.two vats arranged above the said reservoir,sleeves at both inner ends of the said vats,perforated tubes removably fitted and supported on the said sleeves,,-a clamping nut insuring the fixation, on the sleeves, of the said perforated tubes previously-provided with materials to be dyed orbleached,a system of piping comprising for each vat a conduit for sucking the dyeing or bleaching bath, a delivery cock on each of the conaninial fibers on bobbins duits, a first circulation branch connected to the suction conduit, a second circulation branch, these two branches communicating with the sleeves of the vats supporting the erforated tubes carrying the materials to e dyed or bleached,a conduit connecting these two branched-an intermediate piping branched on the two above conduits, a rotary pump with reversing gear, interposed in the intermediate piping for producing the circulation of the baths from the reservoir to each of the vats, then from one vat to the other by passing through the perforated tubes carrying the materials to be dyed or bleached,a steam distributing cock on each of the circulation branches connected to the sucton conduits for insuring the regularity of the temperature of the baths, I

a cock on the second circulation branch permitting the oxldation of the fixed colors,a second cock on the second circulation branch permitting of bringing water under pressure through the perforated tubes for the washing of the dyed or bleached products,-a valve onjthe' bottom of each vat, arranged above the reservoir, for emptying the vats in the said reservoir,and a second valve mounted on the bottom of each valve permitting the issue of the washing water.

The foregoing specification of my Dyeing and bleaching apparatus, signed by me this 28th day of ay, 1920.

ALOY SE WIOLAND.

a distribution of compressed air for 

